Surname พรรจนา (พรรจนา 
) , around the world, is an extremely rare family name. The surname พรรจนา is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname. Very seldom, พรรจนา is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| พรรจนา | Thailand |